The Lightpaper, a providing light paper, developed by Rohinni, is incredibly thin, bright and printable.
Can be used to illuminate logos, nightlight paneling at modern places, on car grills, in electronic watches and more.
It is manufactured by mixing ink with tiny LEDs, about the size of a red blood cell, and printing them on a conductive layer. Then is sandwiched between two other layers. When current runs through the LEDs, they light up.
Read more popsci